%0 Journal Article
%T DIELECTRIC RELAXATION BEHAVIOR OF CERAMICS IN THE Pb(Zn1/3Nb2/3)O3-BaTiO3-PbTiO3 SYSTEM<br>
%A YUE ZHEN-XING
%A WANG XIAO-LI
%A ZHANG LIANG-YING
%A YAO XI
%A <br>
%J 中国物理 B
%D 1997
%I 
%X The dielectric properties of ceramics in Pb(Zn1/3Nb2/3)O3-BaTiO3-PbTiO3 system were characterized using dielectric-temperature spectra. A spontaneous (zero field) relaxor-normal ferroelectric tran sition was observed for tetragonal rich compositions. A significant hysteresis effect accompanied by this transition, similar to first-order phase transition of normal ferroelectrics. This behavior was different from that of other relaxors, in which such transitions occurred only under a biased dc field. This observation was explained in terms of a thermally driven transformation from an ensemble of polar microregions to normal long-range ferroelectric state (micro-macro domain transition), which was attributed to the internal field resulting from the tetragonal strain.
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=CD8D6A6897B9334F09D8D1648C376FB4&aid=E165C3B3A3C11392D107E10DBA8333D4&yid=5370399DC954B911&vid=B31275AF3241DB2D&iid=59906B3B2830C2C5&sid=8637B749179B02B3&eid=753F7A67351FADCC&journal_id=1009-1963&journal_name=中国物理&referenced_num=0&reference_num=0